Small electric lubricating pump

The utility model relates to a small-sized electric lubrication pump used for transmitting lubricant for a friction pair of mechanical motion, which is composed of a cycloidal pin gear speed reducing motor, a plunger type pressure oil pump, and an oil reservoir, wherein, the cycloidal pin gear speed reducing motor is connected with the plunger type pressure oil pump; the oil reservoir is arranged on the upper part of the plunger type pressure oil pump; an output shaft of the cycloidal pin gear speed reducing motor is connected with an eccentric shaft of the plunger type pressure oil pump; the lower part of the oil reservoir is communicated with a plunger oil suction cavity of the plunger type pressure oil pump; the plunger type pressure oil pump is composed of a pump body, the eccentric shaft, a driving wheel, a bearing, a fat supply filter, and two plunger components, wherein, one end of the eccentric shaft is arranged on the pump body; the other end of the eccentric shaft is sheathed on a shaft of the cycloidal pin gear speed reducing motor; the driving wheel is arranged on the eccentric shaft; the two plunger components are symmetrically arranged on the pump body; a wheel groove hook of the driving wheel is clamped on the head of the plunger components; a high and a low level signal emitting devices are arranged on a barrel cover of the oil reservoir; a high and a low level contact rods and a spring power-assisted oil supply device are arranged in a barrel body. The utility model is suitable to be used by single machine equipment and small-sized machine sets with small lubrication points.